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These were the best and worst places for air quality in 2021, new report shows

CNN
Air pollution exceeded WHO guidelines in 97% of cities globally in 2021, with India, Pakistan, and Bangladesh among the worst. Scandinavian countries, Australia, Canada, Japan, and the UK had better air quality. US air pollution increased, mainly due to fossil fuels, wildfires, and transportation. China saw improved air quality, while the Amazon Rainforest emitted more CO2 than absorbed. The report highlights the urgent need for global action to reduce air pollution and combat climate change.